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MathNet 2003 — Part 02 Question 178

Math Olympiad Vault · MathNet 2003 — Part 02

Question 178

A positive integer will be called "sparkly" if its smallest (positive) divisor, other than $1$, equals the total number of divisors (including $1$). How many of the numbers $2, 3, \ldots, 2003$ are sparkly?